INDUSTRIAL QUALITY POWER TOOLS
Edition 4 January 2006
www.makita.co.za
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Why Am I Injured?
SAFE
Three of the major
causes of power
tool injuries are
inattention
through repetition,
an unexpected
event, and
inexperience or
overconfidence.
Unexpected Events
Because most power tools operate
at high speeds, when
things happen, they tend to happen
very quickly. A kickback
situation can suddenly hurl a
workpiece - or a portable tool
itself - at the operator. Fingers might
be drawn into the blade in
some instances, or the tool may
move toward fingers or other
body parts that are in the wrong
place at the wrong time.
Build and use jigs(work helpers) and
fixtures that keep the workpiece
under control and hands well
away from blades and cutters.
Inexperience and Overconfidence
Some people with many years of
experience grow accustomed
to working with their hands
dangerously close to blades and
cutters — sometimes without
protective guards in place. A
sudden grab of the workpiece or a
kickback condition can cause
fingers or hands to be pulled into the
cutter almost instantaneously.
Experience, although a good
teacher, can lull us into
overconfidence. The foolish risks we
then become willing to take
can inflict very painful lessons on us
and our families. Risks like these are
absolutely not worth it.
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2
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Many managers invest significant sums of money to purchase the highest-quality power tools for maintenance
and construction work. A broken saw, drill or other power tool can wreak havoc on a project.
That's why you always should care for power tools with respect. Maintaining power tools is not complicated-it's
just a matter of exercising common sense and developing habits that range from proper cleaning procedures
to the appropriate use of a power source.
Misuse, abuse shortens tool life One common power-tool enemy is the by-product you create with a tool's use.
Foreign particles, such as sawdust, wood fragments and metal chips, build up. They harm power tools, so it is
essential that you clean them regularly. Simply blow out the tools with an air hose after each use. This practice
removes excess dust before it settles inside the tool.
Also, periodically check the wear of brushes in the tool and replace them according to the owner's manual.
Most models allow easy access to check brush wear. When changing the brushes, determine if the tool
requires new lubrication. The tool's performance and operation will be adversely affected if the brushes are not
making complete contact with the armature.
Establishing a program of preventive maintenance should be another element in proper power-tool care. As a
professional crafts person, you should bring your tools to the manufacturer's authorized service center every 6
to 12 months.
Oops, I broke it again!
Anti-Kickback Device –
Safety feature incorporated
into saws to minimize the
possibility of kickback. Take
note: May not work well
when you're cutting smooth,
hard surfaces. Also
important in the prevention
of kickback are proper set-
up, a well–prepared job site,
and well-informed, cautious
operators.
Skipping – Dangerous
reaction that often occurs
when you try to use a sander
with worn, unbalanced, or
chipped sanding discs. The
tool skips or glances off the
workpiece. Firm control of
the tool is important, but
proper maintenance and
service are also essential.
Overreaching – A big
mistake often followed by
big trouble. When using
power tools, always make
sure you've got good
balance and are firmly
planted on your own two
feet.
Feather Board – A work
helper used to firmly hold
your workpiece against the
fence or table of the tool
when you're cutting. Helps
keep hands from getting too
close to dangerous blade or
cutter areas.
Learn
A
Ter m
Inattention Through Repetition
Inattention through repetition is most
likely to occur at a busy
jobsite or in a production shop.
Hurrying to beat deadlines
increases the risk of accidents and
injuries. No matter how
competent and confident the operator,
he or she must not allow
himself or herself to become
complacent. Pause deliberately after
every few repeat operations to refocus
on the task at hand and then proceed
with renewed awareness.
(12 pages)
(60 pages)
(12 pages)
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